Update rector/rector requirement from ^0.12 to ^0.13 (#227)

Updates the requirements on [rector/rector](https://github.com/rectorphp/rector) to permit the latest version.
- [Release notes](https://github.com/rectorphp/rector/releases)
- [Commits](rectorphp/rector@0.12.0...0.13.0)

---
updated-dependencies:
- dependency-name: rector/rector
  dependency-type: direct:development
...

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composer.json

@@ -97,7 +97,7 @@
         "phpstan/phpstan-strict-rules": "^1.0",
         "phpunit/phpunit": "^9.0",
         "qossmic/deptrac-shim": "^0.19",
-        "rector/rector": "^0.12",
+        "rector/rector": "^0.13",
         "roave/security-advisories": "dev-latest",
         "symfony/browser-kit": "^6.0",
         "symfony/finder": "^6.0",